Could you please try these steps for the winrar error? Is your launcher in the same folder as your game files? Also what version of DirectX are you using? Sometimes directx 11 and 10 can cause issues with the game files, so it can be better to use DirectX 9 for PRO instead.
If these two steps do not work, are you able to log into PRO using a different device?
I can not open this link you sent.
Yes.
Mine is DirectX 11
What would it be to enter the PRO using a different device?